Polishing-machine.



L. A. JONES.

POiLlSHING MACHINE.

APPLICATION man Nov. 24. 1915 Patented Apr. 4, 1916.

3 hHEETS-SHEET I wvcwfo'z l.A;. Jbrzes l I g ethane THE COLUMBIAPLANOGRAPH c0., WASHINGTON. D. c.

L. A. JONES. POLISHING MACHINE.

APPLICATION FILED NOV. 24. 1915.

Patented Apr. 4, 1916. x 3 SHEETS-SHEET 2 gwue'nfoz L. A. JONES.

I POLISHING MACHINE.

APPLICATION FILED Nov. 24. 1915.

Patnted Apr. 4, 1916.

3 SHEETSSHEET 3- THE COLUMBIA PMNOGEAPH 00., WASHINGTON, n. c

FFKC LAWRENCE A. JONES, 0F CLYDE, OHIO.

POLISHING-MACHINE.

Application filed November 24, 1915.

To all whom it may concern Be it known that I, LAwRnNoE A. JONES, a.citizen of the United States, residing at Clyde, in the county ofSandusky and State of Ohio, have invented certain new and usefulImprovements in Polishing-Machines; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to the letters and figures of reference marked thereon, which form apart of this specification.

This invention relates to new and useful improvements in polishingmachines designed especially for use in polishing knives, cutlery andother articles and affording means whereby both sides of the article maybe operated upon at the same time.

My invention comprises a simple and efficient device of this naturehaving various details of construction, combinations and arrangements ofparts which will be hereinafter fully described, shown in theaccompanying drawings and then specifically de fined in the appendedclaims.

My invention is illustrated in the accompanying drawings, in whichFigure 1 is a top plan view of the apparatus. Fig. 2 is a sideelevation. Fig. 3 is a sectional view taken on line 33 of Fig. 1. Fig. 4is a sectional view taken on line 44 of Fig. 1, and Fig. 5 is a detailin end elevation of one end of the machine, as illustrated in Fig. 2 ofthe drawings.

Reference now being had to the details of the drawings by numeral, 1designates the frame of the apparatus upon which a movable carriage 2 ismounted to have a reciprocating movement and which carries an adjustableknife-holding support 3 upon which a knife or other article to bepolished is held. Said holder 3 is capable of different adjustmentsthrough the medium of the set screw 5, shown in Fig. 2 of the drawings.Carriage 2 has rack teeth 7 upon the under side thereof which are inmesh with the teeth of a pinion 8, affording means whereby the carriagemay be reciprocated.

Said carriage is provided with-a slot 9',

shown in Figs. 1 and 4, and has adjustable stops 10 which are held indifferent adjusted positions by means of the set screws 11. Ahorizontally disposed, rotatable shaft 12 is provided with beveled gearwheels 13 Specification of Letters Patent.

Patented Apr. 4, 1916.

Serial No. 63,301.

and 14, shown in Fig. 4 of the drawings, and which are loosely journaledupon the shaft 12, journaled in suitable bearings upon the frame, andsaid shaft 12 has a worm gear 16 fixed thereto which is in mesh with theworm upon the driving shaft 17, which is adapted to be drivencontinuously in one direction. Each beveled gear has a hub portion withserrations thereon adapted to mesh with the teeth at either end of thesplined clutch collar 19 which is mounted upon the shaft 12. A forkedclutch throwing member 20 is connected to the clutch collar 19 and hastwo arms 21 and 22 which are apertured to receive the rod 23, which ismounted in apertures in the end wall of the carriage. ,4 member 24having two laterally projecting arms 25 and 26 at the lower end thereofis fastened to the rod 23 and its upper end projects through the slot 9and is adapted to be in the path of one or the other of the stops 10 andwhich causes, when the carriage is moving in one direction, the member24 to more therewith. Coiled springs, designated by numerals 27 and 28,are mounted'upon the rod 23 and interposed between shouldered portionsthereof and the arms 21 and 22. Pivotal pawls 29 and 30 are mounted uponthe opposite walls of the carriage and have shouldered portions 31 whichare adapted to engage the outer faces of the arms 21 and 22 when movedin one direction or the other and adapted to hold one end of the clutchcollar 19 or the other in engagement with the teeth upon one hub portionor the other of the gear wheels 13 and 14. A releasing member,designated by numeral 32, is mounted upon a pivot 33 upon the carriageand its shouldered portion is adapted to engage the angled end 21 of thearm 28.

Adjustable carriages 33 and 34, shown clearly in Fig. 3 of the drawings,are mounted to have adjustable movements intermediate the guideways 37,shown in Fig. 1 of the drawings, and are moved to different adjustedpositions through the medium of the screws 38 passing through threadedapertures in the lugs 39. Pivotally mounted upon the pins 40 carried bythe lugs 41 upon said carriages 33 and 34 are the bars 42 carrying theshafts 43 which have fixed thereto the polishing wheels 43 and whichshafts 43' are driven by pulleys 43 fixed thereto, and to the lower endof each bar 42 is fasteneda laterally projecting bar 44, the

inner ends of which overlap, as shown clearly in Fig. 3 of the drawings.

Mounted to have a longitudinal movement upon the table of the frame is acarriage 4L5, shown in top plan view in Fig. 1 of the drawings and inelevation in Fig. 2, and guided upon the frame by the strips 46. Saidcarriage has a contracted portion 527 upon its lower edge, as shownclearly in Figs. 2 and 3 of the drawings, and which projects through aslot i8 in the table of the frame and said contracted portion has a camedge 49, shown in dotted lines in Fig. 2 of the drawings, which isadapted to contact with an anti-friction roller journaled upon avertically movable block 51 held between the guideways 52 and a coiledspring 53 is mounted upon a lug 54E upon the bearing block 55 which isalso movable in the guideways 52, and an anti-friction roller 56 iscarried by the block 55 and is adapted to bear against the overlappingends of the bars ftfh to cause the supports for the polishing wheels totilt to throw the latter toward or away from each other.

A rack bar, designated by numeral 58, is held by means of a set screw 59in different adjusted positions upon the carriage 45 and the teeth ofsaid rack bar 58 are in mesh with the teeth of the gear wheel 8,affording means whereby, as the carriage 2 carrying the article to bepolished is moved in one direction, the rack bar 58 will move in theopposite direction to cause the reversal of the clutch mechanism andwhich affords means for giving an automatic reciprocating movement tothe knife to be polished.

In operation, the article to be polished is adjusted upon the holder 3and a continuous motion is imparted to the shaft 12. In the drawings,the clutch mechanism is shown in neutral position, the spring 28 beingunder tension. hen it is desired to start the apparatus, the releasinglever 32 is tilted out of engagement with the end of the adjacent arm21, allowing the spring 28 to throw the member 20 therewith and whichwill cause the clutch 1a to be engaged by the teeth in the adjacent endof the splined clutch 19, thus causing the carriage carrying the articleto be fed forward between the polishing wheels a3. As the carriage isfed toward the polishing wheels, the carriage 45 will be moved in theopposite direction and, as the cam projection 49, shown in Fig. 2, comesin contact with the anti-friction roller 50, the blocks 51 and 55 willbe moved downward, causing the bars 44 to tilt and the wheels 43 to movetoward each other to engage the opposite faces of the article beingpolished, the spring 53 allowing the parts to yield slightly. As thecarriage carrying the article to be polished approaches its limit oftravel in one direction, one of the stops 10 thereon will contact withthe projection 24:, causing the same and the rod 23 to move therewithand, when the arm 25 comes in contact with'the inclined end of themember 30, the latter will be tilted upon its pivot, releasing theforked member 28, thus shifting the clutch mechanism and causing theshaft carrying the gear wheel 8 to reverse and thereby driving thecarriage carrying the article to be polished in a reverse direction and,when the other stop 10 comes in contact with the other edge of theprojec tion 2-l, the same operation will be repeated, the clutch beingthrown in the opposite direction, the member 29 being released from theadjacent edge 22. It will be noted, therefore, that by the provision ofthe apparatus shown and described, an automatic means is providedwhereby the article to be polished may be reciprocated back and forthbetween the polishing wheels, the adjusting means being provided wherebythe polishing wheels may be held in different positions and adapted foruse for polishing knives and articles of various kinds.

hat I claim to be new is 1. An apparatus for polishing knives and otherarticles, comprising a frame, a reciprocating carriage upon which thearticle to be polished is mounted, adjustable polishing wheels betweenwhich the article to be polished is moved, a carriage with a camprojection, a rack bar adjustably connected to said carriage with thecam projection, a gear wheel in mesh with said rack bar, clutch and gearmechanism for causing reverse movements to be imparted to saidcarriages, and stops upon the knife-carrying carriage for causing theclutch mechanism to be actuated. V

2. An apparatus for simultaneously polishing the opposite faces ofknives and other articles, consisting of a frame, a carriage adapted toreciprocate thereon and upon which the articleto be polished is mounted,a rack bar upon said carriage, a rotatable shaft, a clutch collarsplined thereto, loosely mounted gear wheels upon the shaft and havinggear teeth upon the hubs thereof, stops upon the carriage, a projectionupon the splined member in the path of said stop members, pivotal barsand polishing wheels carried thereby, a second carriage with a camprojection, a rack bar, a gear wheel inter-meshing with said rack bar,said cam projection designed to tilt the polishing wheel supporting barsas the lniife-carrying carriage is moved in one direction or the other,and means for reversing the movement of said carriages.

3. An apparatus for simultaneously polishing the opposite faces ofknives and other articles, consisting of a frame, a carriage adapted toreciprocate thereon and upon which the article to be polished ismounted, a rack bar upon said carriage, a

' shaft, a clutch collar splined thereto,

mounted gear wheels upon the shaft and rotatable shaft, a clutch collarsplined thereto, loosely mounted gear wheels upon the shaft and havinggear teeth upon the hubs thereof, stops upon the carriage, a projectionupon the splined member in the path of said stop members, polishingwheels and pivotal supports therefor, bars upon said supports, a secondreciprocating carriage with cam edge thereof, vertically movable blocksadapted to be actuated by said cam edge, and to actuate said bars andcause the polishing wheel supports to tilt, a rack bar mounted upon saidcarriage with cam edge, a gear wheel intermeshing with said rack bars,and means for automatically reversing the movements of the carriages.

4. An apparatus for simultaneously polishing the opposite faces ofknives and other articles, consisting of a frame, a carriage adapted toreciprocate thereon and upon which the article to be polished ismounted, a rack bar upon said carriage, a rotatable loosely having gearteeth upon the hubs thereof, stops upon the carriage, a projection uponthe splined member in the path of said stop members, polishing wheelsand pivotal supports therefor, bars upon said supports, a secondreciprocating carriage with cam edge thereon, vertically movable blocksadapted to be actuated by said cam edge and to actuate said bars andcause the polishing wheel supports to tilt, an adjustable rack barmounted upon said carriage with cam edge, a gear wheel intermeshing withthe rack bars, and means for automatically reversing the movement of thecarriages.

5. An apparatus for simultaneously polishing the opposite sides ofknives and other articles, comprising a frame, a reciprocatingknife-carrying carriage, a rack bar movable therewith, a rotatableshaft, gear wheels loosely journaled thereon and having hubs with rackteeth, a clutch collar splined to said shaft, a clutch throwing memberhaving laterally projecting arms with apertured angled ends, a rodpassing through said apertures, a member fixed to said rod and havinglaterally projecting ends, springs interposed between said member uponthe rod and the angled ends of the clutch members, pivotal pawls adaptedto engage the ends of said clutch throwing members, pivotal releasingmembers upon the frame, polishing wheels and adjustable supportstherefor, and means for moving the wheels toward each other as theknife-carrying carriage is actuated in one direction. I

6. An apparatus for simultaneously pol- Gopies of this patent may beobtained for five cents each, by addressing the -ends overlapping eachother,

- with cam edge,

ishing the opposite sides of knives and other articles, comprising aframe, a reciprocating knife-carrying carriage, a rack bar movabletherewith, a rotatable shaft, gear wheels loosely journaled thereon andhaving hubs with rack teeth, a clutch collar splined to said shaft, aclutch throwing memberhaving laterally projecting arms with aperturedangled ends, a rod passing through said apertures, a member fixed tosaid rod and having laterally projecting ends, springs interposedbetween said member upon the rod and the angled ends of the clutchmembers, pivotal pawls adapted to engage the ends of said clutch throing members, pivotal releasing members upon the frame, polishing wheelsand adjustable supports therefor, a second carriage with a cam edge,projections upon said supports and extending toward each other,spring-pressed blocks mounted in guideways upon theframe, antifrictionwheels carried by said blocks, one of which wheels is in the path ofsaid cam edge and the other adapted to bear against said face upon thewheel supports.

7. An apparatus for simultaneously polishing the opposite-sides ofknives and other articles, comprising a frame, a reciprocatingknife-carrying carriage, a rack bar movable therewith, a rotatableshaft, gear wheels loosely journaled thereon and having hubs with rackteeth, a clutch collar splined to said shaft, a clutch throwing memberhaving laterally projecting arms with apertured angled ends, a rodpassing through said apertures, a member fixed to said rod and havinglaterally projecting ends, springs interposed between said member uponthe rod and the angled ends of the clutch members, pivotal pawls adaptedto engage the ends of said clutch throwing members, pivotal releasingmembers upon the frame, polish ing wheels and supports therefor,carriages mounted upon the frame and screws for moving the same inopposite directions, bars fastened to said supports and their free acarriage with cam edge, a rack bar upon said carriage spring-pressedblocks, antithereon, one of whichantifriction wheels is positioned inthe path of said cam edge and the other adapted to bear against theoverlapping portions of said bars.

In testimony whereof I hereunto aflix my signature in the presence oftwo witnesses,

LAWRENCE A. JONES.

friction wheels Witnesses WM. GETZLER, L. BUZZELL.

Commissioner of Patents,

Washington, D. G.

